The Geforce GTX 780 Ti is an update to the original GeForce GTX 780 that Nvidia launched in May and held what Nvidia claimed was "top spot in benchmarks for over five months". The latest version brings 25 percent more Compute Unified Device Architecture (CUDA) cores with new overclocking features so gamers can button bash with "super high resolutions, on multiple monitors, at maximum settings".

Nvidia's new Geforce GTX 780 Ti will compete against AMD's next generation "Hawaii" GPU, the R9 series, which AMD unveiled last month, optimised for "a new era of gaming" on Ultra HD displays.

Its new competitor, the Geforce GTX 780 Ti claims a 20 percent lead over its predecessor and a 50 percent advantage over the Geforce GTX 680 at stock speeds.

"In addition to being our fastest gaming GPU, Geforce GTX 780 Ti is also our most efficient, raising the bar for 250 Watt TDP performance, enabling [it] to stay cool and whisper quiet in an average chassis placed beneath a desk or away from the user," Nvidia said.

"Being whisper quiet, the player stays immersed in their game, undistracted by the deafening whirr of other fans that revolve over 3,000 times per minute."

Nvidia said that this efficiency is also reflected in gameplay, allowing the GPU Boost 2.0-enabled graphics card to avoid thermal throttling limits. This means the GPU will perform at its best for hours, making it ideal for a gaming marathon, for example, without resorting to very loud fan speeds.

G-Sync requires a Geforce GTX 650 Ti Boost or better GPU and an Nvidia G-Sync enabled monitor to work. The technology will be available as a monitor module that you can install yourself, or you'll be able to buy it pre-installed in monitors as well.

There's no news on European availability for either the Geforce GTX 780 Ti GPU or the G-sync technology yet. µ